this is main street in adairsville, tornado tornado. you can see devastation on that side of the street. the trucks completely destroyed here. on this side, it was a normal day of work at this plant, they come here to make parts for tractors. complete devastation. 50 to 100 poem working here today. all of them fine. across this entire area, trucks, everything, shredded. at the plant, justin karns and his fellow employees took refuge in the bathroom what did it sound like and feel like? >> walls shaking. everything shaking. like a pressure on my ears, real high-pitched whistling sound. just hurt my ears really. >> reporter: the 1,000 mile long storm set off tornadoes in six states from missouri to georgia. leaving massive damage and creating drastic temperature changes. in nashville, one man died when a tree fell on his home. >> it was a bad sight. tree fell, like, right on him. >> reporter: in memphis, torrential rain and massive flooding. bridges, underpasses inundated. in arkansas, a horse barn collapsed, all 11 horses okay. in indian